Originally Posted by lcasanova
Make sure you fill the bottle to the brim with the bottling wand inside it. When you remove it you should be left with about 1 inch of headspace.
An excellent tip but don't sweat it too much. On some lighter brews, if you are using startsan it can be hard to see the level of the beer in the bottle. I've found that slight variations in the fill level had no impact on my final carbed beers. I feel its better to slightly underfill than slosh precious beer down the outside of the bottle. N_G